| 1 | //===- MemoryBufferRef.h - Memory Buffer Reference --------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | // |
| 9 | // This file defines the MemoryBuffer interface. |
| 10 | // |
| 11 | //===----------------------------------------------------------------------===// |
| 12 | |
| 13 | #ifndef LLVM_SUPPORT_MEMORYBUFFERREF_H |
| 14 | #define LLVM_SUPPORT_MEMORYBUFFERREF_H |
| 15 | |
| 16 | #include "llvm/ADT/StringRef.h" |
| 17 | |
| 18 | namespace llvm { |
| 19 | |
| 20 | class MemoryBuffer; |
| 21 | |
| 22 | class MemoryBufferRef { |
| 23 | StringRef Buffer; |
| 24 | StringRef Identifier; |
| 25 | |
| 26 | public: |
| 27 | MemoryBufferRef() = default; |
| 28 | MemoryBufferRef(const MemoryBuffer &Buffer); |
| 29 | MemoryBufferRef(StringRef Buffer, StringRef Identifier) |
| 30 | : Buffer(Buffer), Identifier(Identifier) {} |
| 31 | |
| 32 | StringRef getBuffer() const { return Buffer; } |
| 33 | StringRef getBufferIdentifier() const { return Identifier; } |
| 34 | |
| 35 | const char *getBufferStart() const { return Buffer.begin(); } |
| 36 | const char *getBufferEnd() const { return Buffer.end(); } |
| 37 | size_t getBufferSize() const { return Buffer.size(); } |
| 38 | |
| 39 | /// Check pointer identity (not value) of identifier and data. |
| 40 | friend bool operator==(const MemoryBufferRef &LHS, |
| 41 | const MemoryBufferRef &RHS) { |
| 42 | return LHS.Buffer.begin() == RHS.Buffer.begin() && |
| 43 | LHS.Buffer.end() == RHS.Buffer.end() && |
| 44 | LHS.Identifier.begin() == RHS.Identifier.begin() && |
| 45 | LHS.Identifier.end() == RHS.Identifier.end(); |
| 46 | } |
| 47 | |
| 48 | friend bool operator!=(const MemoryBufferRef &LHS, |
| 49 | const MemoryBufferRef &RHS) { |
| 50 | return !(LHS == RHS); |
| 51 | } |
| 52 | }; |
| 53 | |
| 54 | } // namespace llvm |
| 55 | |
| 56 | #endif // LLVM_SUPPORT_MEMORYBUFFERREF_H |
| 57 |